java io IOException Broken pipe

Question

We are currently migrating a legacy application to Jetty  And I have somehow an exception regarding a broken pipe    Java 6 Jetty 8 1 8 Spring 3 2 0   I am trying to migrate a Glassfish web application to Jetty  In our testing environment we are using a load balancer and everything is working fine  Our clients are working without any problem    WARN   2013-04-03 13 34 28 963  com myapp bbb config MvcDefaultConfig 1  Handler execution resulted in exception   org eclipse jetty io EofException  null   at org eclipse jetty http HttpGenerator flushBuffer HttpGenerator java 914    at org eclipse jetty http HttpGenerator complete HttpGenerator java 798    at org eclipse jetty server AbstractHttpConnection completeResponse AbstractHttpConnection java 642    at org eclipse jetty server Response complete Response java 1234    at org eclipse jetty server Response sendError Response java 404    at org eclipse jetty server Response sendError Response java 416    at org springframework web servlet DispatcherServlet noHandlerFound DispatcherServlet java 1111    at org springframework web servlet DispatcherServlet doDispatch DispatcherServlet java 898    at org springframework web servlet DispatcherServlet doService DispatcherServlet java 856    at org springframework web servlet FrameworkServlet processRequest FrameworkServlet java 915    at org springframework web servlet FrameworkServlet doGet FrameworkServlet java 811    at javax servlet http HttpServlet service HttpServlet java 735    at org springframework web servlet FrameworkServlet service FrameworkServlet java 796    at javax servlet http HttpServlet service HttpServlet java 848    at org eclipse jetty servlet ServletHolder handle ServletHolder java 669    at org eclipse jetty servlet ServletHandler CachedChain doFilter ServletHandler java 1336    at com magnetdigital maggy dropwizard head2get Head2GetFilter doFilter Head2GetFilter java 22    at org eclipse jetty servlet ServletHandler CachedChain doFilter ServletHandler java 1307    at com yammer dropwizard servlets ThreadNameFilter doFilter ThreadNameFilter java 29    at org eclipse jetty servlet ServletHandler CachedChain doFilter ServletHandler java 1307    at org eclipse jetty servlet ServletHandler doHandle ServletHandler java 453    at org eclipse jetty server session SessionHandler doHandle SessionHandler java 229    at org eclipse jetty server handler ContextHandler doHandle ContextHandler java 1072    at org eclipse jetty servlet ServletHandler doScope ServletHandler java 382    at org eclipse jetty server session SessionHandler doScope SessionHandler java 193    at org eclipse jetty server handler ContextHandler doScope ContextHandler java 1006    at org eclipse jetty server handler ScopedHandler handle ScopedHandler java 135    at org eclipse jetty server handler HandlerWrapper handle HandlerWrapper java 116    at com yammer metrics jetty InstrumentedHandler handle InstrumentedHandler java 200    at org eclipse jetty server handler GzipHandler handle GzipHandler java 275    at com yammer dropwizard jetty BiDiGzipHandler handle BiDiGzipHandler java 123    at org eclipse jetty server handler HandlerCollection handle HandlerCollection java 154    at org eclipse jetty server handler HandlerWrapper handle HandlerWrapper java 116    at org eclipse jetty server Server handle Server java 365    at org eclipse jetty server AbstractHttpConnection handleRequest AbstractHttpConnection java 485    at org eclipse jetty server BlockingHttpConnection handleRequest BlockingHttpConnection java 53    at org eclipse jetty server AbstractHttpConnection headerComplete AbstractHttpConnection java 926    at org eclipse jetty server AbstractHttpConnection RequestHandler headerComplete AbstractHttpConnection java 988    at org eclipse jetty http HttpParser parseNext HttpParser java 635    at org eclipse jetty http HttpParser parseAvailable HttpParser java 235    at org eclipse jetty server BlockingHttpConnection handle BlockingHttpConnection java 72    at org eclipse jetty server nio BlockingChannelConnector BlockingChannelEndPoint run BlockingChannelConnector java 298    at org eclipse jetty util thread QueuedThreadPool runJob QueuedThreadPool java 608    at org eclipse jetty util thread QueuedThreadPool 3 run QueuedThreadPool java 543    at java lang Thread run Thread java 662  Caused by    java io IOException  Broken pipe   at sun nio ch FileDispatcher write0 Native Method    at sun nio ch SocketDispatcher write SocketDispatcher java 29    at sun nio ch IOUtil writeFromNativeBuffer IOUtil java 69    at sun nio ch IOUtil write IOUtil java 26    at sun nio ch SocketChannelImpl write SocketChannelImpl java 334    at org eclipse jetty io nio ChannelEndPoint flush ChannelEndPoint java 293    at org eclipse jetty server nio BlockingChannelConnector BlockingChannelEndPoint flush BlockingChannelConnector java 253    at org eclipse jetty http HttpGenerator flushBuffer HttpGenerator java 850       44 common frames omitted   When I check the stacktrace I have seen this exceptions are triggered by always a 404 request       org springframework web servlet DispatcherServlet noHandlerFound DispatcherServlet java 1111     Why am I having this exception   How can I reproduce this exception at my machine locally

User · Answer

increase the response getBufferSize    get the buffer size and compare with the bytes you want to transfer

User · Answer

You may have not set the output file

User · Answer

Basically  what is happening is that your user is either closing the browser tab  or is navigating away to a different page  before communication was complete  Your webserver  Jetty  generates this exception because it is unable to send the remaining bytes     org eclipse jetty io EofException  null   at org eclipse jetty http HttpGenerator flushBuffer HttpGenerator java 914    at org eclipse jetty http HttpGenerator complete HttpGenerator java 798    at org eclipse jetty server AbstractHttpConnection completeResponse AbstractHttpConnection java 642       This is not an error on your application logic side   This is simply due to user behavior   There is nothing wrong in your code per se   There are two things you may be able to do    Ignore this specific exception so that you don t log it  Make your code more efficient packed so that it transmits less data    Not always an option

User · Answer

The most common reason I ve had for a  broken pipe  is that one machine  of a pair communicating via socket  has shut down its end of the socket before communication was complete   About half of those were because the program communicating on that socket had terminated     If the program sending bytes sends them out and immediately shuts down the socket or terminates itself  it is possible for the socket to cease functioning before the bytes have been transmitted and read     Try putting pauses anywhere you are shutting down the socket and before you allow the program to terminate to see if that helps   FYI   pipe  and  socket  are terms that get used interchangeably sometimes

User · Answer

I agree with  arcy  the problem is on client side  on my case it was because of nginx  let me elaborate I am using nginx as the frontend  so I can distribute load  ssl  etc      and using proxy pass http   127 0 0 1 8080 to forward the appropiate requests to tomcat   There is a default value for the nginx variable proxy read timeout of 60s that should be enough  but on some peak moments my setup would error with the java io IOException  Broken pipe changing the value will help until the root cause  60s should be enough  can be fixed   NOTE  I made a new answer so I could expand a bit more with my case  it was the only mention I found about this error on internet after looking quite a lot

User · Answer

Error message suggests that the client has closed the connection while the server is still trying to write out a response   Refer to this link for more details   https   markhneedham com blog 2014 01 27 neo4j-org-eclipse-jetty-io-eofexception-caused-by-java-io-ioexception-broken-pipe

[java] java.io.IOException: Broken pipe

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